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Fixed handling of usb state during adb changes. am: 0269ebe0fe am: 4389cb6c9a

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am: dbcbadbb99

Change-Id: Ia923cadf6131f4feeeff5b3d90ba0701c6ea8622
This commit is contained in:
Jerry Zhang
2016-11-17 00:37:01 +00:00
committed by android-build-merger
parent 5f72d153aa dbcbadbb99
commit 6bb98d85a0
1 changed files with 21 additions and 18 deletions
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39
services/usb/java/com/android/server/usb/UsbDeviceManager.java
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@@ -337,14 +337,12 @@ public class UsbDeviceManager {
// Restore default functions.
mCurrentFunctions = SystemProperties.get(USB_CONFIG_PROPERTY,
UsbManager.USB_FUNCTION_NONE);
if (UsbManager.USB_FUNCTION_NONE.equals(mCurrentFunctions)) {
mCurrentFunctions = UsbManager.USB_FUNCTION_MTP;
}
mCurrentFunctionsApplied = mCurrentFunctions.equals(
SystemProperties.get(USB_STATE_PROPERTY));
mAdbEnabled = UsbManager.containsFunction(getDefaultFunctions(),
UsbManager.USB_FUNCTION_ADB);
setEnabledFunctions(null, false);
setEnabledFunctions(null, false, false);
String state = FileUtils.readTextFile(new File(STATE_PATH), 0, null).trim();
updateState(state);
@@ -452,17 +450,24 @@ public class UsbDeviceManager {
if (DEBUG) Slog.d(TAG, "setAdbEnabled: " + enable);
if (enable != mAdbEnabled) {
mAdbEnabled = enable;
String oldFunctions = mCurrentFunctions;
// Due to the persist.sys.usb.config property trigger, changing adb state requires
// persisting default function
String oldFunctions = getDefaultFunctions();
String newFunctions = applyAdbFunction(oldFunctions);
if (!oldFunctions.equals(newFunctions)) {
SystemProperties.set(USB_PERSISTENT_CONFIG_PROPERTY, newFunctions);
// Persist the adb setting
String newFunction = applyAdbFunction(SystemProperties.get(
USB_PERSISTENT_CONFIG_PROPERTY, UsbManager.USB_FUNCTION_NONE));
SystemProperties.set(USB_PERSISTENT_CONFIG_PROPERTY, newFunction);
// Changing the persistent config also changes the normal
// config. Wait for this to happen before changing again.
waitForState(newFunction);
// Remove mtp from the config if file transfer is not enabled
if (oldFunctions.equals(UsbManager.USB_FUNCTION_MTP) &&
!mUsbDataUnlocked && enable) {
oldFunctions = UsbManager.USB_FUNCTION_NONE;
}
// After persisting them use the lock-down aware function set
setEnabledFunctions(mCurrentFunctions, false);
setEnabledFunctions(oldFunctions, false, mUsbDataUnlocked);
updateAdbNotification();
}
@@ -474,7 +479,8 @@ public class UsbDeviceManager {
/**
* Evaluates USB function policies and applies the change accordingly.
*/
private void setEnabledFunctions(String functions, boolean forceRestart) {
private void setEnabledFunctions(String functions, boolean forceRestart,
boolean usbDataUnlocked) {
if (DEBUG) Slog.d(TAG, "setEnabledFunctions functions=" + functions + ", "
+ "forceRestart=" + forceRestart);
@@ -514,7 +520,8 @@ public class UsbDeviceManager {
}
private boolean trySetEnabledFunctions(String functions, boolean forceRestart) {
if (functions == null) {
if (functions == null || applyAdbFunction(functions)
.equals(UsbManager.USB_FUNCTION_NONE)) {
functions = getDefaultFunctions();
}
functions = applyAdbFunction(functions);
@@ -596,10 +603,6 @@ public class UsbDeviceManager {
if (mBroadcastedIntent == null) {
for (String key : keySet) {
if (intent.getBooleanExtra(key, false)) {
// MTP function is enabled by default.
if (UsbManager.USB_FUNCTION_MTP.equals(key)) {
continue;
}
return true;
}
}